Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Harold Stephen Solomon, M.D.

Nephrology Physician in Chestnut Hill, MA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1023006772

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Registry record

Entity type Individual (Type 1)

Name Dr. Harold Stephen Solomon

Credential M.D.

Sex Male

Practice address 25 Boylston St, Suite 308, Chestnut Hill, MA, 02467

Phone (617) 731-7774

Fax (617) 731-4534

Enumeration date Oct 6, 2005

Last updated in NPPES Sep 30, 2008

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 31851 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
M07648	Other	MA	BLUE SHIELD
441323	Other	MA	UNITED HEALTHCARE
2001667	Medicaid	MA	-
4336065	Other	MA	AETNA
705722	Other	MA	TUFTS
B10087301	Other	MA	CIGNA
477582	Other	MA	US/HEALTHCARE OFFICE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Harold Solomon's NPI record?

Cross-check NPI 1023006772 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023006772 active?

Yes, as of the latest NPPES snapshot, NPI 1023006772 is active (record last updated 2008-09-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-30.